104521453 has 4 divisors (see below), whose sum is σ = 109065888. Its totient is φ = 99977020.

The previous prime is 104521447. The next prime is 104521463. The reversal of 104521453 is 354125401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 104521453 - 2⁵ = 104521421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104521463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2272183 + ... + 2272228.

It is an arithmetic number, because the mean of its divisors is an integer number (27266472).

Almost surely, 2^104521453 is an apocalyptic number.

It is an amenable number.

104521453 is a deficient number, since it is larger than the sum of its proper divisors (4544435).

104521453 is an equidigital number, since it uses as much as digits as its factorization.

104521453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4544434.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 104521453 is about 10223.5733968119. The cubic root of 104521453 is about 471.0515958701.

Adding to 104521453 its reverse (354125401), we get a palindrome (458646854).

The spelling of 104521453 in words is "one hundred four million, five hundred twenty-one thousand, four hundred fifty-three".